// ==UserScript==
// @name           YouTube Auto-Liker
// @name:zh        YouTube自動點讚
// @name:ja        YouTubeのような自動
// @namespace      https://github.com/HatScripts/youtube-auto-liker
// @version        1.3.25
// @description    Automatically likes videos of channels you're subscribed to
// @description:zh 對您訂閲的頻道視頻自動點讚
// @description:ja 購読しているチャンネルの動画が自動的に好きです
// @description:ru Автоматически нравится видео каналов, на которые вы подписаны
// @description:es Le gustan automáticamente los videos de los canales a los que está suscrito
// @description:pt Gosta automaticamente de vídeos de canais nos quais você está inscrito
// @author         HatScripts
// @license        MIT
// @icon           https://raw.githubusercontent.com/HatScripts/youtube-auto-liker/master/logo.svg
// @downloadurl    https://github.com/HatScripts/youtube-auto-liker/raw/master/youtube-auto-liker.user.js
// @updateurl      https://github.com/HatScripts/youtube-auto-liker/raw/master/youtube-auto-liker.user.js
// @match          http://*.youtube.com/*
// @match          https://*.youtube.com/*
// @require        https://openuserjs.org/src/libs/sizzle/GM_config.js
// @grant          GM_getValue
// @grant          GM_setValue
// @grant          GM_registerMenuCommand
// @run-at         document-idle
// @noframes
// ==/UserScript==
/* global GM_config, GM_info, GM_registerMenuCommand */
(() => {
'use strict'
GM_config.init({
id: 'ytal_config',
title: GM_info.script.name + ' Settings',
fields: {
DEBUG_MODE: {
label: 'Debug mode',
type: 'checkbox',
default: false,
title: 'Log debug messages to the console'
},
CHECK_FREQUENCY: {
label: 'Check frequency (ms)',
type: 'number',
min: 1,
default: 5000,
title: 'The number of milliseconds to wait between checking if video should be liked'
},
WATCH_THRESHOLD: {
label: 'Watch threshold %',
type: 'number',
min: 0,
max: 100,
default: 50,
title: 'The percentage watched to like the video at'
},
LIKE_IF_NOT_SUBSCRIBED: {
label: 'Like if not subscribed',
type: 'checkbox',
default: false,
title: 'Like videos from channels you are not subscribed to'
},
AUTO_LIKE_LIVE_STREAMS: {
label: 'Auto-like live streams',
type: 'checkbox',
default: false,
title: 'Automatically like live streams'
}
},
events: {
init: onInit
}
})
GM_registerMenuCommand('Settings', () => {
GM_config.open()
})
class Debugger {
constructor (name, enabled) {
this.debug = {}
if (!window.console) {
return () => { }
}
Object.getOwnPropertyNames(window.console).forEach(key => {
if (typeof window.console[key] === 'function') {
if (enabled) {
this.debug[key] = window.console[key].bind(window.console, name + ': ')
} else {
this.debug[key] = () => { }
}
}
})
return this.debug
}
}
var DEBUG
const SELECTORS = {
PLAYER: '#movie_player',
SUBSCRIBE_BUTTON: '#subscribe-button > ytd-subscribe-button-renderer',
LIKE_BUTTON: '#menu #top-level-buttons-computed > ytd-toggle-button-renderer:nth-child(1), #segmented-like-button button',
DISLIKE_BUTTON: '#menu #top-level-buttons-computed > ytd-toggle-button-renderer:nth-child(2), #segmented-dislike-button button'
}
const autoLikedVideoIds = []
function onInit() {
DEBUG = new Debugger(GM_info.script.name, GM_config.get('DEBUG_MODE'))
setInterval(wait, GM_config.get('CHECK_FREQUENCY'))
}
function getVideoId () {
const elem = document.querySelector('#page-manager > ytd-watch-flexy')
if (elem && elem.hasAttribute('video-id')) {
return elem.getAttribute('video-id')
} else {
return new URLSearchParams(window.location.search).get('v')
}
}
function watchThresholdReached () {
const player = document.querySelector(SELECTORS.PLAYER)
if (player) {
const watched = player.getCurrentTime() / player.getDuration()
const watchedTarget = GM_config.get('WATCH_THRESHOLD') / 100
if (watched < watchedTarget) {
DEBUG.info(`Waiting until watch threshold reached (${watched.toFixed(2)}/${watchedTarget})...`)
return false
}
}
return true
}
function isSubscribed () {
DEBUG.info('Checking whether subscribed...')
const subscribeButton = document.querySelector(SELECTORS.SUBSCRIBE_BUTTON)
if (!subscribeButton) {
throw Error('Couldn\'t find sub button')
}
const subscribed = subscribeButton.hasAttribute('subscribe-button-invisible')
DEBUG.info(subscribed ? 'We are subscribed' : 'We are not subscribed')
return subscribed
}
function wait () {
if (watchThresholdReached()) {
try {
if (GM_config.get('LIKE_IF_NOT_SUBSCRIBED') || isSubscribed()) {
if (GM_config.get('AUTO_LIKE_LIVE_STREAMS') ||
window.getComputedStyle(document.querySelector('.ytp-live-badge')).display === 'none') {
like()
}
}
} catch (e) {
DEBUG.info(`Failed to like video: ${e}. Will try again in ${GM_config.get('CHECK_FREQUENCY')} ms...`)
}
}
}
function isButtonPressed (button) {
return button.classList.contains('style-default-active') ||
button.getAttribute('aria-pressed') === 'true'
}
function like () {
DEBUG.info('Trying to like video...')
const likeButton = document.querySelector(SELECTORS.LIKE_BUTTON)
const dislikeButton = document.querySelector(SELECTORS.DISLIKE_BUTTON)
if (!likeButton) {
throw Error('Couldn\'t find like button')
}
if (!dislikeButton) {
throw Error('Couldn\'t find dislike button')
}
const videoId = getVideoId()
if (isButtonPressed(likeButton)) {
DEBUG.info('Like button has already been clicked')
autoLikedVideoIds.push(videoId)
} else if (isButtonPressed(dislikeButton)) {
DEBUG.info('Dislike button has already been clicked')
} else if (autoLikedVideoIds.includes(videoId)) {
DEBUG.info('Video has already been auto-liked. User must ' +
'have un-liked it, so we won\'t like it again')
} else {
DEBUG.info('Found like button. It\'s unclicked. Clicking it...')
likeButton.click()
if (isButtonPressed(likeButton)) {
autoLikedVideoIds.push(videoId)
DEBUG.info('Successfully liked video')
} else {
DEBUG.info('Failed to like video')
}
}
}
})()